Suggestion, role

The permeation of soil at the root-soil interface by mucilage from the root cap may affect structure, and it may oppose the damaging effects of compression and shearing, but little is known. Another suggested role is that the mucilage assists root-cap cells or acts in concert with them to decrease the friction between the growing root tip and soil (51) or, conversely, that the mucilage acts as a lubricant. 

Weisiger RA, Pinkus LM, Jakoby WB. 1980. Thiol s-methyltransferase Suggested role in detoxication of intestinal hydrogen sulfide. Biochem Pharmacol 29 2885-2887. 

Garthwaite J., Charles, S. L., Chess-Williams, R., Endothelium-derived relaxing factor release on activation of NMDA receptors suggests role as intercellular messenger in the brain, Nature 336 (1988), p. 385-388... 

Increase in TXA2 synthesis at 5 min and 1 week of reperfusion suggests role in acute events and later stages of neurological dysfunction (Shohami et al., 1987). TXA2 synthetase inhibitor decreases vasospasm and reduces neurological deterioration after subarachnoid hemorrhage (Tokiyoshi et al., 1991). 

Siess, D., Kozak, S. and Kabat, D. (1996) Exceptional fusogenicity of Chinese hamster ovary cells with murine retroviruses suggests roles for cellular factor(s) and receptor clusters in the membrane fusion process. J VirollO, 3432-3439. 

The goals of this paper are to discuss some of the major generalizations that can be made about allelopathic interactions, provide some examples of suggested roles, and focus on desirable future research applications. Only a few of the pertinent investigations are cited in illustrating major principles. 

Thomas, S.A., Palmiter, R.D. (1997) Disruption of the dopamine beta-hydroxylase gene in mice suggests roles for neuropinephrine in motor function, learning memory. Behav Neurosci 1110 579-89. 

A new mechanism, called the methane-formaldehyde mechanism, has been put forward for the transformation of the equilibrium mixture of methanol and dimethyl ether, that is, for the formation of the first C-C bond.643 This, actually, is a modification of the carbocation mechanism that suggested the formation of ethanol by methanol attaching to the incipient carbocation CH3+ from surface methoxy.460,462 This mechanism (Scheme 3.3) is consistent with experimental observations and indicates that methane is not a byproduct and ethanol is the initial product in the first C-C bond formation. Trimethyloxonium ion, proposed to be an intermediate in the formation of ethyl methyl ether,447 was proposed to be excluded as an intermediate for the C-C bond formation.641 The suggested role of impurities in methanol as the reason for ethylene formation is highly speculative and unsubstantiated. 

Preceding the discussion of the two proposed mechanisms of ethylene oxide formation, the different forms of oxygen and their suggested roles in the oxidation process will be reviewed briefly. 

Considering the results obtained in the reaction of orthoformic esters with CO and H2 (13) and the postulated instability of secondary and tertiary alkylcobalt carbonyls, the suggested role of alkylcobalt carbonyls in the course of this reaction seems questionable. Although a small amount of olefin is detected among the reaction products of sec-butyl-orthoformate with CO and H2, probably because of the low stability of secondary alkylcobalt carbonyls, and an 80 20 ratio is found between 2-methylbutanal and n-pentanal formed (13), it is still to be explained why the hydroformylation of 2-butene under the same conditions involving the same alkylcobalt intermediates gives a 29 71 ratio (4) of the same aldehydes. 

Samson, M., Peale, F. V. Jr, Frantz, G., Rioux-Leclercq, N., Rajpert-De Meyts, E., and Ferrara, N. (2004). Human endocrine gland-derived vascular endothelial growth factor Expression early in development and in Leydig cell tumors suggests roles in normal and pathological testis angiogenesis. J. Clin. Endocrinol Metab. 89, 4078-4088. 

The variation in thermal decomposition yields, which depend on bed geometry, pressure, solvents, etc, are in agreement with the suggested role of internal aliphatic or hydroaromatic hydrogen in stabilizing free radicals in the competitive evolution of light species and tar. 

Henkemeyer, M. et al. (1994). Immunolocalization of the Nuk receptor tyrosine kinase suggests roles in segmental patterning of the brain and axonogenesis. Oncogene 9, 1001-1014. 

Fig. 7. Role of hepatic lipoprotein receptors in lipoprotein metabolism. The central role of hepatic receptors and the importance of apoE in the clearance of chylomicron remnants (remnant receptor), VLDL (LDL receptors), IDL (LDL receptors), and HDL-with apoE (LDL receptors) are indicated. In addition, the suggested role of apoE and hepatic lipase (HL) in the conversion of IDL to LDL is shown.

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